baber/WOPTO huggingface dataset:
Patent JP-H08249711-A (JP)
Title: Light pulse generating device
Inventor: KATAGIRI YOSHIMASA
IPC: H01S5/00
Filed: 1995-03-06
Abstract: PURPOSE: To provide a light pulse generating device capable of generating a light pulse capable of high speed optical digital transmission from an optical recording medium with a simple constitution. CONSTITUTION: An external resonator type laser is constituted of an optical disk 21 recording information by arranging parts with a different reflectance as bit marks 21b, a semiconductor laser 22 imparted a reflection prevention film 27 on one side end surface and an optical fiber 23 whose one end is arranged so as to couple with one side end surface of the semiconductor laser 22 and the other end is arranged so as to oppose to the recording surface 21a of the optical disk 21. In this case, by relatively moving the optical disk 21 and the optical fiber 23 and biasing the semiconductor laser 22 with a prescribed injecting current so as to oscillate only in the high reflectance parts of the optical disk 21, the light pulse capable of high speed optical digital transmission is generated directly from the optical disk 21 without converting to an electric signal.
Patent JP-H05245158-A (JP)
Title: Laser probe
Inventor: TANAKA AKIO
IPC: H01S3/00
Filed: 1992-03-04
Abstract: PURPOSE:To prevent the deterioration in the quality occurring in a chemical reaction and to eliminate the need for costly gold plating by providing a hollow tube made of sapphire on the laser exist part of the laser probe constituted by building a silver halide optical fiber for guiding a CO2 laser therein. CONSTITUTION:The hollow tube 13 made of the sapphire is mounted to the laser exit part of the laser probe constituted by fitting a fluororesin tube 12 onto the outer peripheral part of silver halide optical fiber 11 consisting of the silver chloride or silver bromide in a clearance for flow of a cooling gas 14 and protecting an optical fiber 11. The inside diameter of the hollow tube 13 is formed slightly larger than the outside diameter of the optical fiber 11 and the cooling gas is passed through the clearance between both 11 and 13, by which the melting by the overheating of the optical fiber 11 is prevented and the adhesion of the splashes to the end face of the optical fiber 11 is prevented. The optical fiber 11 and the hollow tube 13 are free from the deterioration in the quality occurring in the chemical reaction in site of direct contact with each other, and therefore the number of parts necessary for maintaining the quality is reduced.
Patent JP-S52129413-A (JP)
Title: Vtr cassette automatic changer
Inventor: KATOU TOSHIROU
IPC: G11B15/68
Filed: 1976-04-22
Abstract: PURPOSE: To set back the eject and reject parts of the cassette changer to allow smooth removal of the changer by detecting the removal of the changer by detecting the removal of the changer from the VTR. 
     COPYRIGHT: (C)1977,JPO&Japio
Patent JP-S60189976-A (JP)
Title: Photocoupled semiconductor device
Inventor: KAWAKAMI YOUJI
IPC: H01L31/12
Filed: 1984-03-10
Abstract: PURPOSE:To contrive the improvement in yield and reliability by stabilizing characteristics by eliminating exfoliation between both the following resins by a method wherein the photo transmitting region and the non photo transmitting region are formed out of resins having nearly equal coefficients of thermal expansion. CONSTITUTION:Mixing a certain amount of carbon particles into a resin of the same material as that of the resin forming the photo transmitting region 3 causes the carbon particles to absorb light and does not allow light transmission. The minimum quantity of carbon necessary to perfectly shield light transmission is about 0.7%. In the case of mixing a 0.7% portion of carbon particles into this photo transmitting resin, the coefficient of thermal expansion remains hardly changed from that of the original photo transmitting resin: about 6.27X10/c. Therefore, formation of the non photo transmitting region out of the non photo transmitting resin produced by mixing an about 0.7% portion of carbon particles into a resin of the same material as that of the resin forming the photo transmitting resin 3 does not allow exfoliation between both the resins because of nearly equal coefficients of thermal expansion.
Patent JP-S61205399-A (JP)
Title: Cavitation preventing equipment
Inventor: OGAMI TAKAHIRO
IPC: F04D29/66
Filed: 1985-03-08
Abstract: PURPOSE:To effectively prevent cavitation by providing the first pressure detecting element in the vicinity of a pump inlet port and providing the second pressure detecting element at a place of a large local pressure drop near the pump in the inlet piping and then by controlling the pump, based on the pressure detected by both elements. CONSTITUTION:Two pressure detecting elements are provided; one at a place 8 in the vicinity of a pump 1 in an inlet pipe 4 for the pump 1 and the other at a place 9 downstream a bend pipe 6, at which a local pressure drop is predicted, in the inlet pipe 4. Pressure signals detected by the said detecting elements are sent to a control board 12, and both the number of revolutions of the pump and the discharge valve and controlled, using corresponding pres sure gauges 13 and 14. With this contrivance, occurrence of cavitation in the inlet piping can be effectively prevented.
Patent JP-S55139085-A (JP)
Title: Coreless motor
Inventor: KUSAMA SABUROU
IPC: H02P29/00
Filed: 1979-04-16
Abstract: PURPOSE:To reduce the occupied volume of the motor by integrating a quartz oscillation circuit and a phase comparator of a quartz-lock thereby to actually install them in a motor case. CONSTITUTION:A frequency dividing circuit 2 divides the oscillation output frequency of a quartz oscillator 1 to produce a reference frequency signal f0, and a phase comparator 3 supplies a deviation signal between a reference frequency signal 10 and an FG signal f' to a motor drive circuit 5. The quartz oscillator 1, frequency dividing circuit 2 and motor drive circuit 3 are installed in hybrid manner thereby to reduce the volume of the motor as small as possible, and install them in the FG signal detecting part 8 of the coreless motor.
Patent JP-H03205135-A (JP)
Title: Optical 3-d shaping method
Inventor: KIHARA HITOSHI
IPC: B29C67/00
Filed: 1990-02-27
Abstract: PURPOSE:To carry out exposure by a surface light source continuously and shape a three-dimensional shape in a short time and inexpensively by varying continuously beam permeating sections of an optical mask correspondingly to respective horizontal sectional shapes. CONSTITUTION:Liquid photo-setting resin 2 is contained in a resin containing container 1 and a light source 4 for setting resin is irradiated to the photo- setting resin 2 through an exposure mask 3 of horizontal sectional shape to set selectively the photo-setting resin 2 and form a three-dimensional shape. At that time, the exposed area of the mask 3 varies according to the horizontal sectional shape data. The work for manufacturing optical masks for every kind of horizontal sectional shapes can be saved by the arrangement, and as dotted beam to scan along the horizontal sectional shape is not required, the three-dimensional shape can be formed at high speed and inexpensively.
Patent JP-H10236281-A (JP)
Title: Wiper control device
Inventor: YOSHIOKA NOBUO
IPC: B60S1/08
Filed: 1997-02-28
Abstract: PROBLEM TO BE SOLVED: To provide a wiper control device that can surely stop a wiper blade even if receiving external force without making the structure of a switch to stop the wiper at a fixed position complex. SOLUTION: This device is provided with a control means 5, which generates a holding signal when a second detection signal is given after wiper switches SW3, SW4, and SW5 are switched to a stop mode from an intermittent wiping mode or continuous wiping mode and giving a first detection signal by a means SW1 to stop a wiper at a fixed position, and holds a drive circuit 4 suspended while holding signals are being generated.
Patent JP-S57161981-A (JP)
Title: White level follower circuit
Inventor: KANEMITSU NORIO
IPC: G06V10/28
Filed: 1981-03-31
Abstract: PURPOSE:To achieve accurate binary signals, by taking a coefficient preset according to the location and length of the initial value set area as a reference potential after converting to a maximum value, in a white level follower circuit. CONSTITUTION:A maximum value within a section of a signal Si obtained through the amplification of an output of an image sensor is detected at a maximum value circuit 35 and stored 58 via an MPX57. An initial value forming conversion circuit 56(ROM) selects a coefficient corresponding to a level value out of coefficients given in advance, the coefficient is multiplied with an output of a memory 58 and the result is stored via the MPX57, a gate 59 is opened with an MPU (not shown), the result is D/A-converted 60 and given to an A/D converter 51. This analog signal level is divided at resistors r1-r15 and given to comparators C1-C15, compared with the input signal Si and given to a terminal 6 as a binary signal S0 via an encoder 52. Thus, a circuit enabling sure A/D conversion can be obtained by setting a suitable reference initial value at each section.
Patent JP-S58163609-A (JP)
Inventor: KAWADA AKIO
IPC: B27K5/02
Filed: 1982-03-24
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S59172094-A (JP)
Inventor: MORITA SHIYUNICHI
IPC: G08B29/14
Filed: 1983-03-21
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S51121371-A (JP)
Title: Solar battery crystal watch
Inventor: HARAKAWA MOTOTAKA
IPC: G04C10/02
Filed: 1975-04-16
Abstract: PURPOSE:Drive the step motor in the period of more than 1 second and less than 1 minute and operate the watch in high accuracy.
Patent JP-H06257413-A (JP)
Title: Gas turbine-steam turbine composite plant
Inventor: YAMAZAKI MASANORI
IPC: F01K23/02
Filed: 1993-03-09
Abstract: PURPOSE:To recover exhaust heat related to cooling of compressed air to reduce heat loss when the compressed air partially extracted from an air compressor of a gas turbine is cooled by cooling water and supplied to the gas turbine in order to coal the blades, etc., of the gas turbine. CONSTITUTION:The compressed air partially extracted from an air compressor 1 is heat-exchanged with cooling water from a deaerator 23 to be cooled by a cooling air-cooler 6, the pressure of cooling water discharged from the cooling air-cooler 6 is reduced by a pressure control valve 38, and the pressure in an evaporator 35 is controlled to a specified pressure which is lower than a saturation pressure corresponding to the temperature of the cooling water discharged from the cooling air-cooler 6 and is higher than the pressure in the deaerator 2, for the cooling water in the evaporator 35 to be boiled. The generated steam is supplied to the deaerator 23.
Patent JP-H07259871-A (JP)
Title: Drive shaft and method and device for manufacturing it
Inventor: YAEGASHI TOSHIHIKO
IPC: F16C3/03
Filed: 1994-03-17
Abstract: PURPOSE:To provide a drive shaft improving strength in a spline toothed part by providing a cylindrical extension part of contracted diameter in a point end of the spline toothed part of a hollow male shaft. CONSTITUTION:An almost cylindrical extension part 23 of diameter phiA smaller than the tooth form small diameter phiD of a spline toothed part 22 is provided in a point end part of a hollow male shaft 21. In order to improve strength, further an end wall 24 is provided in this extension part 23, and in order to smoothly slide male/female shafts in a drive shaft, an opening 25 is provided in this end wall 24.
Patent JP-H0360674-A (JP)
Title: Wire guide for catheter
Inventor: GEIRII GOMURINGAA
IPC: A61M25/09
Filed: 1990-02-27
Abstract: PURPOSE: To enable the operator to mechanically control how far a catheter goes through a patient body by applying a guide onto the end of a main rod in order that the medical device does not move over a touching part, and providing the main rod with a flat ribbon near the touching part to specify bending of the main rod. CONSTITUTION: The guide wire 10 is equipped with a main rod 14 having a bowl touching part 16 applied onto its end. A part of the main rod 14 over an area 24 is made flat in a ribbon 26 in order to easily bend the end of the guide wire 10 toward the direction indicated by an arrow 28 concurrently preventing it from bending toward the direction of an arrow 30 vertical to the arrow 28. As the touching part 16 has a diameter larger than the main rod 14 of the guide wire 10, it is able to restrict the catheter 12 to move forward until it touches to a projection 16. The touching part 16 prevents a cutter 20 from passing over the projection 16 especially when the cutter 20 has an edge 22.
Patent JP-H05248988-A (JP)
Title: Light pulse tester
Inventor: KINO JUNKICHI
IPC: G01M11/02
Filed: 1992-03-04
Abstract: PURPOSE:To average and suppress interferential ripples by changing over the wavelength, supplying coherent light to an optical fiber to be measured, and performing the overall averaging process with the measuring data averaged for each wavelength. CONSTITUTION:When coherent light of wavelength lambda1 is supplied by a variable wavelength coherent light source 1 to an optical fiber to be measured 19, the measuring data obtained by coherently detecting the reflected light from the fiber 19 given in association therewith and the station-originated light from the light source 1 is averaged by an averaging circuit (sum of squares circuit) 10. When a wavelength control circuit 2 changes over the wavelength of the light source 1 to lambda2 on the basis of the timing signal from the averaging circuit 10 given at the ending time of averaging process, the averaging process is executed for the measuring data due to the wavelength lambda2. When the averaging process for all wavelengths lambdan to be controlled by the control circuit 2 is ended, a signal processing part 11 adds the measuring data for each wavelength, averages, converts logarithmically, and displays the measured waveform turned linear on the basis of this data converted logarithmically.
Patent JP-H05247723-A (JP)
Title: Conjugate fiber having excellent opacity, heat-shielding property and color-developing property
Inventor: KATO TETSUYA
IPC: D01F8/04
Filed: 1992-03-04
Abstract: PURPOSE:To provide a conjugate fiber having contradictory properties of opacity, heat-shielding property and color-developing property, giving a textile product having visual covering effect, beautifulness and fashionability and useful for clothes such as underwear, lingerie and swimming suit. CONSTITUTION:The objective conjugate fiber is composed of a white opaque polymer layer 1 containing white pigment at high concentration and a transparent polymer layer 2. The transparent polymer layer 2 is divided into >=3 sections with the white opaque polymer layer 1 in the crosssection of the fiber and >=50% of the fiber surface is composed of the transparent polymer layer 2.
Patent JP-S59172719-A (JP)
Title: Vapor growth of compound semiconductor
Inventor: ISHITA TAKESHI
IPC: H01L21/205
Filed: 1983-03-22
Abstract: PURPOSE:To obtain a mixed crystal semiconductor which has a wide light emission band width in which the light emission of fine crystals with different forbidden bands by a method wherein at least one of the P type zone or the N type zone of a P-N junction is formed by a semiconductor mixed crystal which has average composition within the melting point gap range. CONSTITUTION:Metal In 31 and metal Ga 32 are introduced as III group materials and transported in forms of indium chloride and gallium chloride respectively by HCl gas. AsH3 and PH3 are introduced into their downstream through a by- pass tube 33. An N<+> type GaAs substrate 34 is placed in the downstream and an N type In1-yGayAs1-xPx and a P type In1-yGayAs1-xPx are made grow on the substrate 34 to the thickness of about 2mum respectively in that order. H2S is used for S doping and Zn(C2H5)2 is used for Zn doping and the growth temperature is 800 deg.C for a source domain and 740 deg.C for the GaAs substrate. With this method, the In1-yGayAs1-xPx whose average composition is expressed by (x)= 0.04 and (y)=0.72 which are within the melting point gap was made grow to form a P-N junction. The light emission of a light emission diode thus obtained covered the wide spectrum range from 5,500Angstrom  to 9,000Angstrom . This was the widest light emission wavelength range ever made by a single light emission diode.
Patent JP-S54139320-A (JP)
Title: Supervisory equipment
Inventor: SEIZAN TERUHISA
IPC: H04J3/00
Filed: 1978-04-20
Abstract: PURPOSE:To transmit changeable data correctly under no control of transmissiom cycle by detecting and storing changeable data transmitted cyclically and providing a means which counts the number of state change times. CONSTITUTION:The state change of changeable data of line 1a is detected in 13, and a shift signal is outputted to line 1b. Then, state data is stored in memory 11, and simultaneously, counter 14 is increased by +1. The output of counter 14 is inputted to decoder 15, and the output of decoder 15 is made into one high level of line 16a of memory 16 according to counting. When the address of a pertinent unit is supplied from series-parallel (PS) converter circuit 4 to address collation circuit 3 in the cyclic transmission, an address coincidence signal is outputted to operate selection 17. Circuit 17 controls gate 12 to transmit changeable data of memory 11 successively from circuit 4 in each transmission cycle according to the counted number of counter 14.
Patent JP-H07259269-A (JP)
Title: Joint member constructing structure
Inventor: SAWANISHI RYOZO
IPC: E04D11/00
Filed: 1994-03-18
Abstract: PURPOSE:To prevent concrete from entering the end face opening of the cap of a joint member for keep concrete on the rooftop. CONSTITUTION:The elastic cap 10 of a joint member 1 has longitudinal ribs 11 on the side face. After the upper face of the cap 10 is adjusted in such a way as to be flush with the upper face of keep concrete by the covering degree of the cap 10 to the joint member 1, the cap 10 is fastened to the joint member 1 by a supporting pin 15, and the cap 10 and the joint member 1 are supported by a leg 20. An elastic packing 16 is inserted into the end face opening part 10a of the cap 10 at a corner part until the opening is completely closed, and a protruding part is cut off. When expansion/contraction is generated to a concrete layer, the cap 10 and the packing 16 are also expanded/contracted along with the joint member 1 so as to absorb the expansion/contraction.
Patent JP-H08248257-A (JP)
Title: Optical element coupling method and refractive index image forming material
Inventor: TSUKAMOTO KOJI
IPC: G02B6/42
Filed: 1995-03-07
Abstract: PURPOSE: To form a refractive index distribution without being influenced by the time for irradiation with light at the time of forming the refractive index distribution in a method of coupling optical elements, such as optical fibers, optical waveguides, semiconductor lasers, LEDs, PDs or lenses to each other in optical communication, optical interconnection, etc. CONSTITUTION: This method includes a stage for fixing the respective end faces of the two optical elements 43, 44 apart a spacing, a stage for packing a refractive index image forming material 45 which generates the high-refractive index distribution in the photoirradiated region by an activation treatment after the irradiation with light between the two optical elements 43 and 44 without a change in the refractive index distribution at the time of the photoirradiation with a specific wavelength band, a stage for irradiating the refractive index image forming material 45 with the light of the specific wavelength band from at least one end faces of the two optical elements 43, 44 and a stage for forming the refractive index distribution 46 having a light condensable lens effect in the photoirradiated region by heating the refractive index image forming material 45.
Patent JP-S57161838-A (JP)
Title: Focus detector of camera
Inventor: SAKAI SHINJI
IPC: G03B7/08
Filed: 1981-03-31
Abstract: PURPOSE: To improve the response speed of a device by fixing the signal integral time of a signal integral and storage type image sensor to a time value directly before film exposure according to the film exposure.  
     CONSTITUTION: An image signal read out of an image sensor 6 in time series, after balance adjustment BA is performed, is sampled and held by circuits SHA and SHB, and a differential amplifier DIF cancels its drak current. On receiving the output, window comparators COMPA and COMPB discriminate the propriety of the sinal level and the storage (signal integration) time of the sensor 6 is controlled by a storage time control circuit AGC. The control circuit AGC fixes the storage time to a value right before exposure by using a singal SW 2  generated relating to the film exposure operation, and even it the output level of the sensor 6 drops owing to the interception of light, the longest time is not set, allowing the storage time to return to a proper level rapidly. 
     COPYRIGHT: (C)1982,JPO&Japio
Patent JP-H10234506-A (JP)
Title: Front panel of counter
Inventor: YASUMOTO AKINORI
IPC: A47B47/02
Filed: 1997-03-03
Abstract: PROBLEM TO BE SOLVED: To reduce the number of parts and man-hours required for assembling the parts into a counter, and to make the total length of a counter constant, by forming prescribed joints against the front surface panel using a decorative panel at the edge. SOLUTION: This panel comprises a panel material 7 forming bent parts 7a, 7b bent inward at a right angle at the upper and lower edges, an upper decorative panel 8 forming bent parts 8a, 8b, 8c of corresponding shapes fitting in the bent parts 7a, 7b, and an lower decorative panel 9 forming bent parts 9a, 9b, 9c of corresponding shapes fitting in the bent parts 7a, 7b. The bent parts 8a, 8b, 8c, 9a, 9b, 9c on the upper/lower decorative panels 8, 9 are fitted in the bent parts 7a, 7b on the upper/lower edges of the panel material 7, and screwed at the bent parts overlapping each other to be unified.
Patent JP-2000237037-A (JP)
Title: Rice cooker
Inventor: YAGI MASATOSHI
IPC: A47J27/00
Filed: 1999-02-25
Abstract: PROBLEM TO BE SOLVED: To enhance a deformation preventing function by receiving the deformation of an inner lid unit member by means of an outer lid by providing a packing arranged inside the outer lid for covering the upper surface opening part of a pot in the outer lid so as to be freely attachable/detachable and arranging plural fall preventing ribs at proximate positions opposite to a packing position 2 in the outer lid. SOLUTION: A packing 2 is arranged inside the outer lid 1 for covering the upper surface opening part of the pot 27 which is stored inside a rice cooker main body, and it is held between an inner lid support 30 and the inner lid 31 and integrated to constitute the inner lid unit member 3. In this case, the fall preventing rib 5 is arranged on the inner side surface of the outer lid 1, which is in a ring shape or divided into plural parts and has a little gap (about 0.05 mm-0.5 mm) in the upper part of the member 3. The rib 5 is set to have the dimension being nearly the same as that of the inner diameter of the packing 2. Thus, the deformation of the member 3 is received by the outer lid 1 so that its deformation is prevented.